PhotoGPSEditor and PhotoInfoEditor, and Mac OS X 10.6 (Snow Leopard)
Neither PhotoGPSEditor or PhotoInfoEditor are currently working under Mac OS X 10.6 (Snow Leopard).
The programs can run, but will not recognise any photo file formats. (Apple has changed the way such information is stored under 10.6).
The problem has been identified, and a fix for PhotoGPSEditor should be out within a few days, and a fix for PhotoInfoEditor shortly afterwards.